CN203068540U

CN203068540U - High-temperature abrasion-resistant smoke tube thermal insulation structure

Info

Publication number: CN203068540U
Application number: CN 201220678577
Authority: CN
Inventors: 严气概
Original assignee: SHANGHAI RUIEN ENERGY INVESTMENT CO Ltd
Current assignee: SHANGHAI RUIEN ENERGY INVESTMENT CO Ltd
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2013-07-17
Anticipated expiration: 2022-12-11

Abstract

The utility model relates to a high-temperature abrasion-resistant smoke tube thermal insulation structure. The high-temperature abrasion-resistant smoke tube thermal insulation structure is characterized in that the high-temperature abrasion-resistant smoke tube thermal insulation structure is of a five-layer structure of which the five layers are arranged in a concentric mode. The outmost layer is a thermal insulation protection layer (1). The innermost layer is a mullite high-strength fire-resistant poured material layer (5). A mineral wool layer (2), a steel plate (3) and a calcium silicate plate (4) are respectively arranged between the outmost layer and the innermost layer from outside to inside. The high-temperature abrasion-resistant smoke tube thermal insulation structure can insulate heat and save energy, reduce investment cost, shorten construction time and provide a thermal insulation method for smoke conveying in metallurgy and steel industries and is high in efficiency, light, convenient and durable.

Description

The smoke pipe insulation construction of high-temperature wearable

Technical field

The utility model relates to a kind of utilidor structure, especially a kind of smoke pipe insulation construction of high-temperature wearable.

Background technology

Be that raw material is produced in the pyrometallurgical smelting process of primary nickel with the laterite nickel ore, the flue gas that closed submerged fire grate is released is carried by pipeline.

The temperature amplitude of pipeline supplied flue gases is very big, does not wait from 500 ° of C to 1200 ° of C, concerning the waste heat overbottom pressure is utilized, realizes safe transport as much as possible, well insulated, and this must accomplish.

The single insulation construction that existing flue often adopts, or adopt refractory brick as the insulation protection of liner, or use wear-resistant castable to add the mode of interior insulation, the drawback that it is followed has:

Can not select the most suitable adiabatic means at different temperatures;

Extensive simple, temperature is obviously depleted, fails to realize well insulated;

Local damage appears in anti-wear performance deficiency easily, and the life-span is short, shuts down and repairs influence production;

The interior thickness of protecting increases, same circulation area, and steel plate materials increases, and cost increases.

The utility model content

The purpose of the present utility model: the smoke pipe insulation construction that is intended to propose a kind of multi-layer combined type high-temperature wearable reasonable in design.Both realize good insulation, wear-resisting, reduced investment, and can improve service life of equipment again simultaneously, finally realized economic benefit of enterprises.

The smoke pipe insulation construction of this high-temperature wearable; it is characterized in that: its five-layer structure for arranging with one heart; outermost layer is heat insulation protecting layer 1, and innermost layer is the mullite high-strength refractory cast bed of material 5, above-mentionedly between two-layer is respectively from outside to inside: rock wool layer 2, steel plate 3, calcium silicate board 4.

Described external thermal insulation 1, it is made of galvanized steel plain sheet or aluminium sheet, also comprises the zinc-coated wire of lashing rock wool 2 on it.

This smoke combustion heat insulation structure according to above technical scheme proposes reaches insulating energy-saving, and efficiently light, long-lived effect reduces cost of investment simultaneously, shortens the engineering time, a kind of heat preserving method of provide metallurgical, the steel industry flue gas being carried.

Description of drawings

Fig. 1 is lateral cross section structural representation of the present utility model;

Fig. 2 is longitudinal profile structural representation of the present utility model.

Among the figure: 1-external heat insulation protecting layer; The 2-rock wool layer; The 3-steel plate; The 4-calcium silicate board; 5-mullite high-strength refractory waters material feeding.

The specific embodiment

The smoke pipe insulation construction of this high-temperature wearable as shown in the figure, it is a kind of improvement to the homogeneous structure of present widespread usage.It is characterized in that: its five-layer structure for arranging with one heart, outermost layer is heat insulation protecting layer 1, innermost layer is the mullite high-strength refractory cast bed of material 5, above-mentionedly between two-layer is respectively from outside to inside: rock wool layer 2, steel plate 3, calcium silicate board 4.

In actual applications, the concrete structure specification is as follows:

Outermost layer external thermal insulation 1, it is made by galvanized steel plain sheet or aluminium sheet, also comprises the zinc-coated wire of lashing rock wool 2, they form the fixing and protection to external thermal insulation, this design makes this insulation construction can be applied to the open air, reaches weather-proof purpose, prolongs to be incubated service life.

Rock wool layer 2 is as external thermal insulation, and under temperature was not very high situation, it was a kind of ratio of performance to price excellent insulating main material.

Steel plate 3 is main support materials of insulation construction, and material is Q235, and it is the core skeleton of high-abrasive material and insulation material; Choose reasonable high-abrasive material and insulation material have determined the actual (real) thickness of steel plate;

Calcium silicate board 4 is as the heat-insulation material of high temperature, and existing certain intensity has good thermo-insulation properties again, and it is close to the steel plate inboard, is supporting the mullite high-strength refractory cast bed of material.

The mullite high-strength refractory waters material feeding 5 and is seated on the calcium silicate board 4, has characteristics such as wear-resisting, heat insulation, that the life-span long, construction is easy; It directly contacts with flue gas, accepts the test of flue-gas temperature, bears the surface erosion of the particle that carries in the flue gas.

The present invention is applicable under the uniform temperature condition, contains the conveying of wear particle flue gas; Its reasonable insulation construction has been realized adiabatic, wear-resisting, firm, durable function.

This smoke combustion heat insulation structure reaches insulating energy-saving, and is efficiently light, and long-lived effect reduces cost of investment simultaneously, shortens the engineering time, a kind of heat preserving method of provide metallurgical, the steel industry flue gas being carried.

Claims

1. the smoke pipe insulation construction of a high-temperature wearable; it is characterized in that: its five-layer structure for arranging with one heart; outermost layer is heat insulation protecting layer (1); innermost layer is the mullite high-strength refractory cast bed of material (5), above-mentionedly between two-layer is respectively from outside to inside: rock wool layer (2), steel plate (3), calcium silicate board (4).

2. the smoke pipe insulation construction of high-temperature wearable as claimed in claim 1, it is characterized in that: described external thermal insulation (1), it is made of galvanized steel plain sheet or aluminium sheet, also comprises the zinc-coated wire of lashing rock wool (2) on it.